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Finding the Fourth Proportional to 367,627.90, 515,378.90 and 367,627.90

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Solution

The fourth proportional to 367,627.90, 515,378.90 and 367,627.90 is: 515,378.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,627.90 : 515,378.90 = 367,627.90 : x
  2. Step 2: Convert to fraction form
    367,627.90/515,378.90 = 367,627.90/x
  3. Step 3: Cross multiply
    367,627.90x = 515,378.90 × 367,627.90
  4. Step 4: Simplify right side
    367,627.90x = 189,467,662,711.31
  5. Step 5: Solve for x
    x = 189,467,662,711.31/367,627.90
  6. Step 6: Final answer
    x = 515,378.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.